[Intel-gfx] [PATCH 0/9] HW contest support for Ironlake

[Chris Wilson]

On Mon, Jul 15, 2013 at 10:24:19AM -0700, Ben Widawsky wrote:
> On Mon, Jul 15, 2013 at 01:44:13PM +0100, Chris Wilson wrote:
> > On Sun, Jul 14, 2013 at 09:22:44AM -0700, Ben Widawsky wrote:
> > > Finally, in the series I reenable rc6 on ILK. I've never had an issue
> > > with this on my ILK, but I recommend anyone testing on it who sees
> > > issues to try to disable it via modparam firstly.
> > > 
> > > The patch series is minimally tested. I told Chris and Ken at the
> > > offset, they'd need to do the heavy lifting on the testing front.
> > 
> > My initial impression is that it seems to prevent IPS from kicking in
> > and speeding up the igfx, so peak performance is 2x slower than before
> > applying the series.
> Are you sure this isn't just another attempt to get a module parameter
> to shut it off :P

A static renderctx I can bear. :)

I do wonder if my machine is simply overheating at the moment, though.
It might just a quirk of environmental conditions rather than something
more nefarious.
 
> What's the benchmark - I'll take a look when I get back on my ILK.
> Chris(f), Ken - maybe you guys can have a looksee?

I first noticed the problem when fishietank never speeded up, but it
affects everything from scrolling in firefox to aa10text.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre